Quad track trencher



FIG. 1 is a top front perspective view of a quad track trencher showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 if a top rear perspective view thereof; and,

FIG. 9 is a left side elevational view of the quad track trencher of FIG. 1.

Portions of the quad track trencher shown in phantom do not form a part of the design.

The broken line showing of the second set of implements on the front and rear of the quad track trencher is included for purpose of illustrating environment only and forms no part of the claimed design. 

The ornamental design for a quad track trencher, as shown and described. 